초록 ▼

A highly effective module for preventing corrosion of oil well pipes and equipment and for preventing resulting fires and explosions. The module is a collar formed from slitted and expanded metal net and is adapted to fit in the annular space between the oil production pipe and the outer casing of t

A highly effective module for preventing corrosion of oil well pipes and equipment and for preventing resulting fires and explosions. The module is a collar formed from slitted and expanded metal net and is adapted to fit in the annular space between the oil production pipe and the outer casing of the oil well, to prevent oxygen from the atmosphere from entering the annular space at the top of the well, and to exclude hydrocarbon vapors from the subterranean production zone from entering the annular space at the bottom of the well. The invention also relates to methods for extinguishing a burning oil well.

대표청구항 ▼

[ What is claimed is:] [12.] A method of treating an oil well which has an ignited gusher of oil flowing out the wellhead end of its production pipe, comprising the steps of:a. placing a body of slitted and expanded metal foil in a position above said flame and maintaining said body in said position

[ What is claimed is:] [12.] A method of treating an oil well which has an ignited gusher of oil flowing out the wellhead end of its production pipe, comprising the steps of:a. placing a body of slitted and expanded metal foil in a position above said flame and maintaining said body in said position until the flame of said ignited gusher is extinguished, and said gusher is reduced to a flow of non-burning oil;b. providing an externally threaded tubular fitting having an inside diameter slightly larger than the outside diameter of said production pipe;c. slipping said tubular fitting over the wellhead end of said production pipe and sealing the inside surface of said fitting to the outside surface of said production pipe;d. providing a shut off valve having internal threading matching the external threading of said tubular fitting;e. threading said shut off valve on to said tubular fitting; andf. closing said valve to stop the flow of oil and return said oil well to normal condition.